As the title says - I'm trying to plan the safest way to use my US LG C9 when I move to Australia. I already plan to buy a voltage step-down for small living room setup consisting of the following:

• 65" LG C9
• LG Soundbar (Don't shoot me!)
• Plex Server w/UPS
• Internet Appliances (OPNSense, WAP, etc)

Is the answer as simple as get a transformer that has a max wattage that is above the entire stack above and call it good? I see a couple 2300W for $45 on Amazon as well as some "Pro level" 3000W for the $100-120 range. I'm far from a professional in this domain and I'm more than willing to upgrade to the heavy duty transformers if its the correct move and the $45 options are more suited for smaller appliances.

Appreciate any advice and thank you guys for what you do. I've lurked a lot here and the C9 was bought recently due to this sub!